View full sizeExpress-Times Photo | MATT SMITHThe Sands Casino Resort Bethlehem hotel. City police said a Morristown, N.J. man assaulted his girlfriend at the hotel during a fight over a sleeping disorder.

A Morristown, N.J. man allegedly beat and restrained his girlfriend inside their Bethlehem hotel room early this morning following an argument about the victim's sleeping disorder, according to court records.

When police arrived at the room where Robert B. Fulford, 41, and Marybeth Kostek were staying in the Sands Casino Resort Bethlehem hotel, they found Fulford with a cut above his eye, court papers say.

Fulford told police his girlfriend had cut him during a bi-polar episode, court papers say. But when authorities interviewed Kostek, they learned that Fulford had been assaulting her for hours after she had fallen asleep because of a disorder, court papers say. Kostek told police that Fulford had been yelling at her and throwing her to the ground when she tried to leave the hotel room.

Kostek suffered a deep cut on her knee from one of the falls, court records say, requiring her to receive four stitches.

Fulford was arraigned early this morning before on-duty District Judge Roy Manwaring on charges of simple assault, harassment and unlawful restraint. He was sent to Northampton County Prison in lieu of $25,000 with a 10 percent option.